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Lycopodium powder is a yellow-tan dust-like powder, consisting of the dry spores of clubmoss plants, or various fern relatives. When it is mixed with air, the spores are highly flammable and are used to create dust explosions as theatrical special effects.
Lycopodium (from Ancient Greek lykos, wolf and podion, diminutive of pous, foot) [2] is a genus of clubmosses, also known as ground pines or creeping cedars, [3] in the family Lycopodiaceae. Two very different circumscriptions of the genus are in use.
The company's origins lie in the J.D. Stiefel Company which was established in 1847, in Germany, by John David Stiefel; its first products were candles but the company began making medicated soaps within several years of its founding. In the 1880s, the company began worldwide export of its products. [6]
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Although other genera now placed within the family (in particular Huperzia, published in 1801 [4]) had been described, until the mid-1900s, Lycopodium was often the only genus recognized. Work by Josef Holub and Benjamin Øllgaard in the 1980s established three clear divisions within the family. [5]
The Eopa Company operated nationally until the early 1950s. In 1877, Boericke & Tafel opened a pharmacy in Oakland at the Grand Central Hotel at 956 Broadway. They suspended operations in 1882, selling it to William Adelbert Brueck, [ 10 ] a homeopathic pharmacist who had been their manager.
Lycopodium flabelliforme var. ambiguum Victorin Diphasiastrum digitatum is known as groundcedar, running cedar or crowsfoot , along with other members of its genus, but the common name fan clubmoss can be used to refer to it specifically.